Lennox Hearth B-MNC5304VDE Indoor Fireplace User Manual


 
22
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Step 4. FIELD WIRING
Caution: Label all wires prior to disconnec-
tion when servicing controls. Wiring errors
can cause improper and dangerous opera-
tion. Verify proper operation after servicing.
Refer to Section A for millivolt appliances and
Section B for electronic appliances. The gas
valve is set in place and pre-wired at the
factory on both models.
A. Millivolt Wiring
(See Figure 42 )
1. Appliance-mounted ON/OFF burner control
switch (rocker switch) is factory installed in
the modesty panel. Optional wall-mounted
switch, thermostat, or one of the optional
remote control kits may also be used.
2. If wall-mounted ON/OFF control or thermo-
stat is selected mount it in a convenient loca-
tion on a wall near the fireplace.
3. Wire the control switch within the millivolt
control circuit using the 15 feet of 2 conductor
wire supplied with the unit.
Note: The supplied 15 feet of 2 conductor
wire has one end of each conductor con-
nected to the gas valve circuit and the other
end of each conductor placed loose inside
the bottom compartment.
Caution: Do Not connect the optional wall
switch to a 120V power supply.
4.If an optional control switch is installed, turn
the appliance-mounted ON/OFF burner control
switch to the OFF position.
Figure 42
Figure 43
Figure 44
1. Route a 3-wire 120Vac 60Hz 1ph power
supply to the appliance junction box.
2. Remove the electrical inlet cover plate from
the side of the unit by removing the plate's
securing screws.
See Figure 11 on page 9.
3. Remove the cover plate's knockout and then
feed the power supply wire through the knock-
out opening and into the unit junction box.
4. Connect the black power supply wire to the
lower outlet's red pigtail lead and the white
power supply wire to the common terminal of
the outlet as shown in
Figures 43 or 44.
5. Connect the ground supply wire to the pigtail
lead attached to outlet's green ground screw.
6. Appliance-mounted ON/OFF burner control
switch (rocker switch) is factory installed in
the modesty panel. Optional wall-mounted
switch, thermostat, or one of the optional
remote control kits may also be used.
7. If wall-mounted ON/OFF control or thermo-
stat is to be used, mount it in a convenient
location on a wall near the fireplace.
8. If an optional control is to be used, wire it
in the the low voltage circuit as shown in
Figures 43 or 44.
Note: The supplied 15 feet of 2 conductor wire has
one end of each conductor connected to the gas
valve circuit and the other end of each conductor
placed loose inside the bottom compartment.
9. If an optional control switch is installed,
turn the appliance-mounted ON/OFF burner
control switch to the OFF position.
10. After the wiring is complete, replace the
cover plate.
Note: The gas valve-mounted ON/OFF switch
is shown in Figure 43. It is integral with the gas
valve and should be set to the ON position.
1. If any of the original wire as supplied must be replaced,
1. it must be replaced with Type AWM 105°C – 18 GA. wire.
2. 120V, 60Hz – Less than 3 amps.
BK
Transf.
120 V.
24 V
Factory Wired Field Wired
BL
Electronic Wiring Diagram (Honeywell)
Showing the Blower Wiring for the Optional
FBK-250 Kits
R
WH
BL
W
Gas Valve
B
R
IGNITER
BK
Schematic Representation Only
*ON/OFF Switch (Integral
with Gas Valve)
Optional
FBK-250
Module
*Leave the ON/OFF switch, which is integral
with the gas valve, in the ON position.
G
OPTIONAL APPLIANCE-MOUNTED ON/OFF SWITCH
OR OPTIONAL WALL SWITCH OR OPTIONAL THERMOSTAT
OR OPTIONAL REMOTE RECEIVER
PILOT
ASSEMBLY
OPT
BLOWER
Junction Box
White
Green
Red
Black
Neutral
Side of
Receptacle
Tab Intact
Green
Ground
Screw
Hot
Side of
Receptacle
Tab
Broken
Optional
Accessory
Switch
120 VAC - Black
n
e
e
r
G-dn
u
o
r
G
e
ti
h
W
-
lar
t
u
e
N
1. If any of the original wire as supplied must be replaced,
1. it must be replaced with Type AWM 105°C – 18 GA. wire.
2. 120V, 60Hz – Less than 3 amps.
BK
Transf.
120 V.
24 V
Factory Wired Field Wired
BL
Electronic Wiring Diagram (Honeywell)
Showing the Blower Wiring for the Optional
FBK-100 and FBK-200 Kits
R
W
BL
W
Gas Valve
B
R
IGNITER
BK
*Blower speed control switch is provided in FBK200 blower kit.
Schematic Representation Only
**ON/OFF Switch (Integral
with Gas Valve)
**Leave the ON/OFF switch, which is integral
with the gas valve, in the ON position.
OPTIONAL APPLIANCE-MOUNTED ON/OFF SWITCH
OR OPTIONAL WALL SWITCH
OR OPTIONAL THERMOSTAT
OR OPTIONAL REMOTE RECEIVER
G
OPT
BLOWER
PILOT
ASSEMBLY
Junction Box
White
Green
Red
Black
Neutral
Side of
Receptacle
Tab Intact
Green
Ground
Screw
Hot
Side of
Receptacle
Tab
Broken
120 VAC - Black
n
e
e
r
G-dn
u
o
r
G
Optional
Accessory
Switch
e
ti
h
W
-
lar
t
u
e
N
Thermopile
TH
TP
TH
TP
Millivolt Wiring Diagram
If any of the original wire as supplied must be replaced,
it must be replaced with Type AWM 105°C – 18 GA. wire.
*OR OPTIONAL WALL-MOUNTED ON/OFF SWITCH
OR OPTIONAL THERMOSTAT
OR OPTIONAL REMOTE CONTROL RECEIVER
*Turn the appliance-mounted ON/OFF burner
control switch to the OFF position if an
optional control switch is installed.
Factory Wired
Field Wired
Schematic Representation Only
APPLIANCE-MOUNTED ON/OFF SWITCH
IMPORTANT: Ground supply lead must be
connected to the wire attached to the green
ground screw located on the outlet box. See
Figure 43 and 44
. Failure to do so will result
in a potential safety hazard. The appliance
must be electrically grounded in accordance
with local codes or, in the absence of local
codes, the National Electrical Code, ANSI/
NFPA 70-(latest edition). (In Canada, the
current CSA C22-1 Canadian Electrical Code.)
B. Electronic Wiring
(See
either Figures 43 or 44 )
Note: The electronic appliance must be con-
nected to the main power supply.
Note: The tab connecting the receptacles of
the outlet box must be broken in FBK-100 and
FBK-200 blower kit applications.